G
Guillermo Ballesteros
Researcher at Autonomous University of Madrid
Publications - 53
Citations - 2150
Guillermo Ballesteros is an academic researcher from Autonomous University of Madrid. The author has contributed to research in topics: Inflation (cosmology) & Dark matter. The author has an hindex of 24, co-authored 50 publications receiving 1583 citations. Previous affiliations of Guillermo Ballesteros include University of Geneva & Spanish National Research Council.
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Primordial black hole dark matter from single field inflation
Guillermo Ballesteros,M. Taoso +1 more
TL;DR: In this paper, the authors proposed a model of inflation capable of generating a population of light black holes (about 10-16-10-14 solar masses) that might account for a significant fraction of the dark matter in the Universe.
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Standard Model—axion—seesaw—Higgs portal inflation. Five problems of particle physics and cosmology solved in one stroke
TL;DR: In this article, a minimal extension of the Standard Model (SM) providing a consistent picture of particle physics from the electroweak scale to the Planck scale and of cosmology from inflation until today is presented.
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Unifying Inflation with the Axion, Dark Matter, Baryogenesis, and the Seesaw Mechanism.
TL;DR: A minimal extension of the standard model (SM) with a single new mass scale and providing a complete and consistent picture of particle physics and cosmology up to the Planck scale is presented.
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Black hole formation from a general quadratic action for inflationary primordial fluctuations
Guillermo Ballesteros,Guillermo Ballesteros,Jose Beltrán Jiménez,Mauro Pieroni,Mauro Pieroni +4 more
TL;DR: In this paper, the authors describe analytically and numerically the dynamics by which inflationary fluctuations featuring a time-varying propagation speed or an effective Planck mass can lead to abundant primordial black hole production.
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Dark energy with non-adiabatic sound speed: initial conditions and detectability
TL;DR: In this paper, the authors study the prospect of detecting dark energy perturbations using CMB data from Planck, cross-correlated with galaxy distribution maps from a survey like LSST.